Treadmill is the most common aerobic equipment. You can use the treadmill to do walking, running and other fitness activities. A good treadmill will consider the influence of walking and running on human joints when designing, so when you step on the platform of the treadmill, you will be more elastic, which will protect your joints, especially your knee joints, which is much safer than walking and running on the concrete floor outdoors.

What I want to tell you here is that if the exerciser has a knee injury or weakness, please use the treadmill as little as possible. After all, the knee pressure is still very high.

Elliptical Machine

The elliptical machine is specially designed for people who can't run on the treadmill. Elliptical machine means that every time you walk or run on it, the route is elliptical.

When you exercise on an elliptical machine, it is different from a treadmill. When you exercise on the treadmill, your feet should leave the ground, but the elliptical machine is not. It feels like walking and running, but your feet don't leave the pedal, so you can enjoy walking and running, and the pressure on your knee joint is minimized.

Stair machine

The stair machine is that your feet don't leave the pedal, and the pedal moves with your feet, which has no joint impact on your healthy body. In fact, this is not its biggest point. The biggest point is that it mainly uses the muscles of hips and legs for aerobic exercise. If you come down after 20 minutes of exercise on the stair machine, you will feel a slight pain in your hips and thighs.

Long-term use of stairs will first enhance your cardiopulmonary function, secondly strengthen the muscle endurance of buttocks and thighs, and finally make you consume body fat and make you slimmer. This is also the reason why many women like to use stair climbing machine for aerobic exercise.

Indoor cycling

Indoor bicycle is a very good fitness equipment. Many coaches recommend indoor bicycles. There are two kinds of indoor cycling, one with backrest and the other without backrest. Many people like both, and the one with backrest has greater support for the back and waist. If you have a bad waist or an injury, it will be more comfortable to use this backrest.

Indoor bicycles have another advantage. If you want to read books and newspapers during exercise time in the gym, cycling indoors is your best choice, because you don't have to control your balance, as long as your feet work hard.

Mountaineering machine

As the name implies, a mountaineering machine is an aerobic equipment that feels like climbing a mountain. This device does not leave the pedal, and the two feet climb alternately on the pedal. By using thigh strength, this device has less pressure on the knee and better tightening effect on the thigh.